ツンデレ
Meanings
Na-adjective
Noun
1. normally being cold but at some prompt suddenly becoming lovestruck; hot-cold personality type (Colloquial)
Examples2
そうやって
That way you keep thinking about me but are unable to admit to your feelings, that hot and cold feel is a real boom among young men!
誰
Who are you calling sweet-n-sour?! At the very least I certainly don't remember being sweet!